All categories

3 years ago

Use the theorem on inverse functions to prove that f and g are inverse functions of each other. f(x) = 3x − 2 g(x) = x + 23

Mathematics

1 answer:

nignag [31]3 years ago

6 0

Answer:

I need these points more than you do

Step-by-step explanation:

What do we do

You might be interested in

BRAINLIEST ASAP! PLEASE HELP ME :)

bezimeni [28]

The expression above equals −1, and so does this option.

I am joyous to assist you anytime.

3 0

4 years ago

Solve each proportion.<br> 1) 4/7 =2/n

Ivan

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

$\frac{4}{7} = \frac{2}{n} \\$

Inverse both sides

$\frac{7}{4} = \frac{n}{2} \\$

$\frac{n}{2} = \frac{7}{4} \\$

Multiply sides by 2

$2 \times \frac{n}{2} = 2 \times \frac{7}{4} \\$

$n = \frac{7}{2} \\$

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

7 0

3 years ago

Find the area of this isosceles trapezoid. A) 85.5 units2 B) 171 units2 C) 342 units? 345 units?

liubo4ka [24]

9514 1404 393

Answer:

B) 171 units^2

Step-by-step explanation:

The area is given by the formula ...

A = 1/2(b1 +b2)h

Filling in the given base and height values, we find the area to be ...

A = 1/2(23 +15)(9) = (19)(9) = 171 . . . square units

_____

<em>Additional comment</em>

You can select the correct answer choice simply on the basis of "reasonableness." If this were a 9×15 rectangle, its area would be 9×15 = 135 square units, more than 85.5. You know its area is less than a 9×23 rectangle, so is less than 9×23 = 207 square units. Only one answer choice is a value between 135 and 207.

Multiplication by 9 is not so hard. It is multiplication by 10-1:

15×9 = 15×(10 -1) = 150 -15 = 135

3 0

3 years ago

Each month Allison gets a $15 allowance and earns $100 working at the theater. She uses the expression 15x+100y to keep track of

Marizza181 [45]

Step-by-step explanation:

The expression for he earning of Allison and her allowance is as follows :

15x+100y

Part A

Variables are x and y. Coefficients are 15 and 100.

Part (B)

There are two terms in this expression. + is used to separate the terms. 15x and 100y are the terms.

Part (C) As $15 shows her earning from allowances. Hence, 15x shows allowance.

3 0

4 years ago

28.4 x 21.05 divided by 5.9

exis [7]

Answer:

101.325423729

Step-by-step explanation:

28.4 x 21.05 =597.82

597.82/5.9=101.325423729

6 0

3 years ago

Read 2 more answers